/Engine/Plugins/Runtime/MeshModelingToolset/Source/MeshModelingTools/Public/DrawPolygonTool.h
Generate extruded meshes. Returns true on success.
bool GeneratePolygonMesh ( const [TArray](API\Runtime\Core\Containers\TArray)< FVector3d > & Polygon, const [TArray](API\Runtime\Core\Containers\TArray)< [TArray](API\Runtime\Core\Containers\TArray)< FVector3d >> & PolygonHoles, [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) * ResultMeshOut, [UE::Geometry::FFrame3d](API\Runtime\GeometryCore\FFrame3d_1) & WorldFrameOut, bool bIncludePreviewVtx, double ExtrudeDistance, bool bExtrudeSymmetric )